Like, I can change the color by doing the [COLOR=Black] thing in my signature, but I can't just click on the "A" with the line on it. It doesn't show up with the color options. It just shows a small white bar when I click it, and that's it. No matter what I do on my computer, doesn't matter what browser, it just won't work.

i think you have to select 'go advanced' which is next to post quick reply, that may be the problem.